TY - RPRT TI - Gravity Estimation from a Simulated GRACE Mission: Short vs. Long Arcs AU - Rowlands, David D. AU - Ray, Richard D. AU - Chinn, D. S. AU - Lemoine, F. G. AU - Smith, David E. PY - 2001 UR - https://ntrs.nasa.gov/citations/20020073402 ID - 20020073402 ER -